Knoxville Weather Forecast

    • 73
    • 91

    Slight Chance Thunderstorms

    • 75
    • 93

    Mostly Sunny

    • 73
    • 94

    Mostly Sunny

    • 72
    • 90

    Chance Thunderstorms

    • 68
    • 89

    Slight Chance Rain Showers

    • 66
    • 88

    Mostly Sunny

Today 31 Aug Knox

Mostly sunny. Highs in the lower 90s. Southwest Winds 10 to 15 Mph. Heat index Values up to 102 in the afternoon.

Tonight 31 Aug Knox

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Knoxville Temperature Statistics

August Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 24 August, 2026

    52.3 °F

  • Average August

    72.3 °F

  • Highest 10 August, 2026

    88.2 °F

Climate (2021–2026)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.5 °F
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